Sep-21 News Extended knowledge of 933190-51-3

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 8-Bromo-6-chloroimidazo[1,2-b]pyridazine, other downstream synthetic routes, hurry up and to see.

Application of 933190-51-3, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 933190-51-3, name is 8-Bromo-6-chloroimidazo[1,2-b]pyridazine belongs to chlorides-buliding-blocks compound, it is a common compound, a new synthetic route is introduced below.

To a solution of 5-ethylpyridin-2-amine (394 mg, 3.23 mmol) in DMF (8 mL) was added NaH (129 mg, 60% dispersion in mineral oil, 3.23 mmol) under N2 atmosphere at room temperature and stirred for another 0.5 h. To this mixture was added 8-bromo-6-chloroimidazo[1,2-b]pyridazine (0.3 g, 1.3 mmol). After 20 h stirring at room temperature, saturated NH4Cl solution was added and the reaction mixture was extracted with ether (200 mL) and washed with water (2×50 mL), then brine (2×50 mL). After drying and filtration, it was concentrated to afford 6-chloro-N-(5-ethylpyridin-2-yl)imidazo[1,2-b]pyridazin-8-amine (785 mg, crude) as a yellow solid that was used directly without further purification. LC-MS: [M+1]+=274, tR=1.726 min.

In the field of chemistry, the synthetic routes of compounds are constantly being developed and updated. I will also mention this compound in other articles, 8-Bromo-6-chloroimidazo[1,2-b]pyridazine, other downstream synthetic routes, hurry up and to see.

Reference:
Patent; Hoffmann-La Roche Inc.; Hermann, Johannes Cornelius; Kuglstatter, Andreas; Lucas, Matthew C.; Padilla, Fernando; Wanner, Jutta; Zhang, Xiaohu; US2013/109661; (2013); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

9/23/2021 News New learning discoveries about 933190-51-3

According to the analysis of related databases, 933190-51-3, the application of this compound in the production field has become more and more popular.

In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 933190-51-3 as follows. name: 8-Bromo-6-chloroimidazo[1,2-b]pyridazine

A 100-mL single-neck round-bottomed flask equipped with a magnetic stirrer and a reflux condenser was charged with 104a (2.0 g, 4 mmol), 5-(4-methylpiperazin-1-yl)pyridin-2-amine (920 mg, 4.8 mmol), tris(dibenzylideneacetone)dipalladium(0) (366 mg, 0.4 mmol), XantPhos (688 mg, 1.2 mmol), Cs2CO3 (2.6 g, 8.0 mmol), and 1,4-dioxane (60 mL). After three cycles of vacuum/argon flush, the mixture was heated at reflux for 15 h. It was then cooled to room temperature and filtered. The filtrate was concentrated under reduced pressure and the resulting residue was purified by silica-gel column chromatography eluting with dichloromethane/methanol (20:1) to afford 104b as yellow solid (1.4 g, 70%). MS: [M+H]+344.

According to the analysis of related databases, 933190-51-3, the application of this compound in the production field has become more and more popular.

Reference:
Patent; GENENTECH, INC.; Crawford, James John; Ortwine, Daniel Fred; Young, Wendy B.; US2013/116262; (2013); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

9/8/2021 News Brief introduction of 933190-51-3

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 933190-51-3, name is 8-Bromo-6-chloroimidazo[1,2-b]pyridazine, A new synthetic method of this compound is introduced below., Formula: C6H3BrClN3

A solution of 6-(trifluoromethyl)pyridin-2-amine (0.668 g, 4.12 mmol) in DMF (5 mL) was added NaH (0.10 g, 4.18 mmol) and stirred for 0.5 h. To the mixture was added 8-bromo-6- chloroimidazo[l,2-b]pyridazine (0.38 g, 1.65 mmol) under N2. The mixture was stirred at room temperature for 16 h then 100 mL of water was added and the precipitate collected by filtration and washed with water to give 6-chloro-N-(6-(trifluoromethyl)pyridin-2-yl)imidazo[l,2- b]pyridazin-8-amine (0.513 g, 99 %) as a light brown solid. LC-MS: [M+H]+, 314.1 , tR = 1.738 min.

The basis of chemical reaction formula synthesis, the synthesis route is composed of some specific reactions and combined according to certain logical thinking. We look forward to the emergence of more reaction modes in the future.

Reference:
Patent; F. HOFFMANN-LA ROCHE AG; HERMANN, Johannes Cornelius; KUGLSTATTER, Andreas; LUCAS, Matthew C.; PADILLA, Fernando; WANNER, Jutta; ZHANG, Xiaohu; WO2013/64445; (2013); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

1-Sep-21 News The important role of 933190-51-3

The synthetic route of 933190-51-3 has been constantly updated, and we look forward to future research findings.

Reference of 933190-51-3, A common heterocyclic compound, 933190-51-3, name is 8-Bromo-6-chloroimidazo[1,2-b]pyridazine, molecular formula is C6H3BrClN3, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

A microwave vial was charged with a mixture of 8-bromo-6- chloroimidazo[l,2-b]pyridazine (1.06 g, 4.56 mmol), 3-(l,3,2-dioxaborinan-2-yl)pyridine (0.743 g, 4.56 mmol), dioxane (14 mL), and tetrakis(triphenylphosphine)palladium(0) (0.527 g, 0.456 mmol), and K3P04 (2.90 g, 13.68 mmol) (2.0 M water solution) was stirred at room temperature for 5 min. under nitrogen. The resulting mixture was heated to 100 C for 8 h in microwave. The reaction mixture was cooled to room temperature, quenched with water, and diluted with EtOAc. The layers were separated and the aqueous layer was extracted with EtOAc (3 X 20 mL). The combined organic layer was washed with brine, dried over anhydrous Na2S04, and filtered. The filtrate was concentrated under reduced pressure. The residue was purified by BIOTAGE (20-60% EtOAc/hex, 1.5 L) to the product (0.39 g, 37%). LC/MS: Rt = 1.07 min. LC/MS (Condition A): 231.09/233.09.

The synthetic route of 933190-51-3 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; BRISTOL-MYERS SQUIBB COMPANY; VELAPARTHI, Upender; LIU, Peiying; BALOG, James Aaron; WO2011/137155; (2011); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

New learning discoveries about 933190-51-3

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 933190-51-3, its application will become more common.

Some common heterocyclic compound, 933190-51-3, name is 8-Bromo-6-chloroimidazo[1,2-b]pyridazine, molecular formula is C6H3BrClN3, traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route. HPLC of Formula: C6H3BrClN3

EXAMPLE 41 1 -(4- { 3 – IY 1 S)- 1 -( 6-Chloroimidazo Gamma 1 ,2-blpyridazin-8-ylamino ethyl1 -7-fluoro-8-methyl- quinolin-2-yl)piperazin-l-yl)ethanoneIntermediate 21 (800 mg, 2.42 mmol) and 8-bromo-6-chloroimidazo[l,2- >]- pyridazine (670 mg, 2.8 mmol) in NMP (8 mL) were treated with DIPEA (1.4 g, 11 mmol) and heated at 120C under microwave irradiation for 1 h. The reaction mixture was partitioned between water (25 mL) and EtOAc (150 mL). The organic layer was washed with water (25 mL) and brine (25 mL), then dried (phase separation cartridge) and concentrated in vacuo. Purification by column chromatography (Si02, 20% EtOAc in isohexane) gave the title compound (400 mg, 38%) as a white solid, delta? (CDC13) 8.13 (IH, s), 7.69 (IH, s), 7.52 (IH, dd, J8.92, 6.04 Hz), 7.46 (IH, s), 7.17 (IH, t, J9.01 Hz), 6.48 (IH, d, J6.64 Hz), 6.28 (IH, s), 5.08-5.00 (IH, m), 4.10-4.02 (IH, m), 3.95-3.70 (3H, m), 3.46-3.18 (4H, m), 2.61 (3H, d, J2.34 Hz), 2.21 (3H, s), 1.83 (3H, d, J6.80 Hz). LCMS (ES+) 482/484 (M+H)+, RT 4.22 minutes {Method 2).

These compound has a wide range of applications. It is believed that with the continuous development of the source of the synthetic route 933190-51-3, its application will become more common.

Reference:
Patent; UCB PHARMA S.A.; ALLEN, Daniel, Rees; BUeRLI, Roland; HAUGHAN, Alan, Findlay; MATTEUCCI, Mizio; OWENS, Andrew, Pate; RAPHY, Gilles; SHARPE, Andrew; WO2011/58109; (2011); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Introduction of a new synthetic route about 933190-51-3

The synthetic route of 933190-51-3 has been constantly updated, and we look forward to future research findings.

Researchers who often do experiments know that organic synthesis is a process of preparing more complex target molecules from simple raw materials through one or more chemical reactions. Generally, it requires fewer steps, and cheap raw materials. 933190-51-3, name is 8-Bromo-6-chloroimidazo[1,2-b]pyridazine, A new synthetic method of this compound is introduced below., Product Details of 933190-51-3

To a solution of 6-fluoropyridin-2-amine (1.12 g, 10 mmol) in DMF (16 mL) was added NaH (0.24 g, 60% dispersion in mineral oil, 10 mmol) and the mixture stirred for 0.5 h. To the mixture was added 6-chloro-N-(6-fluoropyridin-2-yl)imidazo[1,2-b]pyridazin-8-amine (0.93 g, 4 mmol) under N2. The mixture was stirred at room temperature for 16 h, then partitioned between 45 mL of saturated NH4Cl solution and 45 mL of ether. The organic layer was washed with water (30 mL×3) and saturated NaCl solution (30 mL×3), dried over Na2SO4, concentrated in vacuo, and purified by chromatography (silica gel, 200-300 mesh, petroleum ether:ethyl acetate=3:1) to give 6-chloro-N-(6-fluoropyridin-2-yl)imidazo[1,2-b]pyridazin-8-amine (1.04 g, 99%) as a light brown solid. LC-MS: [M+H]+, 264.1, 266.2, tR=1.601 min.

The synthetic route of 933190-51-3 has been constantly updated, and we look forward to future research findings.

Reference:
Patent; Hoffmann-La Roche Inc.; Hermann, Johannes Cornelius; Kuglstatter, Andreas; Lucas, Matthew C.; Padilla, Fernando; Wanner, Jutta; Zhang, Xiaohu; US2013/109661; (2013); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Simple exploration of 933190-51-3

Statistics shows that 8-Bromo-6-chloroimidazo[1,2-b]pyridazine is playing an increasingly important role. we look forward to future research findings about 933190-51-3.

Reference of 933190-51-3, These common heterocyclic compound, 933190-51-3, name is 8-Bromo-6-chloroimidazo[1,2-b]pyridazine, its traditional synthetic route has been very mature, but the traditional synthetic route has various shortcomings, such as complicated route, low yield, poor purity, etc, below Introduce a new synthetic route.

To a solution of 6-(piperidin-1-yl)pyridin-2-amine (0.725 g, 4.12 mmol) in DMF (8 mL) was added NaH (0.11 g, 60% dispersion in mineral oil, 4.18 mmol) and the mixture stirred for 0.5 h. To this mixture was added 8-bromo-6-chloroimidazo[1,2-b]pyridazine (0.384 g, 1.65 mmol) under N2. The mixture was stirred at room temperature for 16 h. The resulting mixture was treated with a saturated NH4Cl solution (50 mL), extracted with ether (80 mL), dried over Na2SO4, filtered and concentrated. The residue was purified by chromatography (silica gel, 200-300 mesh, petroleum ether:ethyl acetate=3:1) to give 6-chloro-N-(6-(piperidin-1-yl)pyridin-2-yl)imidazo[1,2-b]pyridazin-8-amine (0.13 g, 24.1%) as a yellow solid. LC-MS: [M+H]+, 329.0, 331.0, tR=1.912 min

Statistics shows that 8-Bromo-6-chloroimidazo[1,2-b]pyridazine is playing an increasingly important role. we look forward to future research findings about 933190-51-3.

Reference:
Patent; Hoffmann-La Roche Inc.; Hermann, Johannes Cornelius; Kuglstatter, Andreas; Lucas, Matthew C.; Padilla, Fernando; Wanner, Jutta; Zhang, Xiaohu; US2013/109661; (2013); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Research on new synthetic routes about 933190-51-3

According to the analysis of related databases, 933190-51-3, the application of this compound in the production field has become more and more popular.

In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 933190-51-3 as follows. Safety of 8-Bromo-6-chloroimidazo[1,2-b]pyridazine

Compound 3-1 (0 · 27g, lmmol), morpholine 0 · 12g (l. 2mmol) and triethylamine (0 · 3ml, 2. 2mmol) Was added to 5ml of tetrahydrofuran was refluxed for 12h, after completion of the reaction, washed with water, extracted with dichloromethane, washed with saturated brine, dried over anhydrous sodium sulfate. Petroleum ether: ethyl acetate 6: 1 column chromatography to obtain a solid, yield 80%

According to the analysis of related databases, 933190-51-3, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Peking University; Zhang Liangren; (50 pag.)CN103360399; (2016); B;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Discovery of C6H3BrClN3

According to the analysis of related databases, 933190-51-3, the application of this compound in the production field has become more and more popular.

In the chemical reaction process, reaction time, type of solvent, can easily affect the result of the reaction, thereby determining the yield and properties of the reaction product. An updated downstream synthesis route of 933190-51-3 as follows. name: 8-Bromo-6-chloroimidazo[1,2-b]pyridazine

A mixture of 8-bromo-6-chloroimidazo[1,2-b]pyridazine (573 mg, 2.47 mmol), 6-(3-tert-butylpyrrolidin-1-yl)pyridin-2-amine (540 mg, 2.47 mmol), Pd2(dba)3 (142 mg, 0.25 mmol), BINAP (307 mg, 0.50 mmol), Cs2CO3 (2.4 g, 7.41 mmol) and dioxane (20 mL) was heated to reflux with stirring for 15 h under N2. The solvent was removed in vacuo and the resulting mixture was purified by chromatography (silica gel, 200-300 mesh, dichloromethane_MeOH=50:1) to give N-(6-(3-tert-butylpyrrolidin-1-yl)pyridin-2-yl)-6-chloroimidazo[1,2-b]pyridazin-8-amine (400 mg, crude) as a brown oil. LC-MS: [M+H]+, 371.1, tR=2.23 min.

According to the analysis of related databases, 933190-51-3, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Hoffmann-La Roche Inc.; Hermann, Johannes Cornelius; Kuglstatter, Andreas; Lucas, Matthew C.; Padilla, Fernando; Wanner, Jutta; Zhang, Xiaohu; US2013/109661; (2013); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics

Brief introduction of 933190-51-3

According to the analysis of related databases, 933190-51-3, the application of this compound in the production field has become more and more popular.

Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 933190-51-3, name is 8-Bromo-6-chloroimidazo[1,2-b]pyridazine, This compound has unique chemical properties. The synthetic route is as follows., Recommanded Product: 933190-51-3

A mixture of 8-bromo-6-chloroimidazo[1,2-b]pyridazine (2 g, 8.6 mmol) and 5,6-dimethoxypyridin-2-amine (1.39 g, 9.03 mmol) in DMF (72 ml) was cooled to 0 C. To the mixture was added sodium hydride (1.1 g, 27.5 mmol, 60% dispersion in mineral oil). The reaction was stirred for 10 min then warmed to room temperature. After 15 h the reaction was quenched with saturated sodium bicarbonate solution, and then diluted with water and EtOAc. An insoluble solid was filtered off. The filtrate was separated and the aqueous phase was washed with EtOAc. The combined organic extracts were concentrated in vacuo and the residue obtained was crystallized from methanol to give 6-chloro-N-(5,6-dimethoxypyridin-2-yl)imidazo[1,2-b]pyridazin-8-amine (2.4 g, 7.85 mmol, 91.2%) as light brown needles. 1H NMR (300 MHz, CHLOROFORM-d) delta ppm 8.26 (br. s., 1H) 7.95 (s, 1H) 7.81 (s, 1H) 7.55 (s, 1H) 7.15 (d, J=7.93 Hz, 1H) 6.58 (d, J=8.31 Hz, 1H) 4.12 (s, 3H) 3.89 (s, 3H); LC/MS: 305.9 [MH]+.

According to the analysis of related databases, 933190-51-3, the application of this compound in the production field has become more and more popular.

Reference:
Patent; Hoffmann-La Roche Inc.; Hermann, Johannes Cornelius; Kuglstatter, Andreas; Lucas, Matthew C.; Padilla, Fernando; Wanner, Jutta; Zhang, Xiaohu; US2013/109661; (2013); A1;,
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics